HVAC Services in Johnston, IA
Johnston homeowners trust Obsidian Heating and Cooling for fast, reliable heating and cooling service. We're a veteran-owned team based just minutes away in Des Moines, and there's no community we're prouder to serve than the home of Camp Dodge and the Iowa National Guard. Whether your furnace won't fire on a cold night, your central air is struggling through a humid stretch, or you're ready for a new energy-efficient system, we respond quickly with same-day service when possible. We handle central AC repair and installation, heat pumps, furnaces, boilers, ductless mini-splits, and indoor air quality. We service equipment from all major brands - Tempstar, LG, Carrier, Trane, Lennox, and more - and we're an authorized Tempstar Elite Dealer and an LG ductless dealer.
Up to 15-Year Warranty
Parts & Labor
Why Johnston Homeowners Choose Obsidian
HVAC Services Available in Johnston
We provide the full range of heating and cooling services for Johnston homeowners. Here's what we offer:
Central AC Repair & Service
If your air conditioning isn't cooling, is leaking refrigerant, or won't turn on, we diagnose the problem quickly. We repair broken systems and get you back to comfort without unnecessary replacement. We service all brands and carry common parts.
AC Repair ServicesCentral AC Installation & Replacement
If your AC is aging or beyond repair, we install a new high-efficiency unit sized for your home. In Johnston's tightly sealed newer builds we focus on right-sizing so the system cools and dehumidifies properly. We handle ductwork, electrical, and full system testing.
AC Installation ServicesHeat Pump Installation & Replacement
Heat pumps provide heating in winter and cooling in summer - a strong fit for Johnston's variable climate and efficient new homes. They can lower energy costs compared with a furnace alone. We install and commission heat pump systems for maximum efficiency.
Heat Pump InstallationHeat Pump Repair & Service
Heat pump problems - won't heat, won't cool, low output - affect your comfort year-round. We diagnose and repair both the heating and cooling cycles to restore full performance.
Heat Pump RepairFurnace Installation & Replacement
For reliable winter heating, we install high-efficiency gas and electric furnaces. We handle venting, gas line connections, electrical service, and safety testing. New furnaces are more efficient and reliable than older models.
Furnace InstallationFurnace Repair & Service
If your furnace won't ignite, runs intermittently, or produces weak heat, we diagnose and repair it. We also perform safety inspections to ensure proper combustion and venting.
Furnace RepairMini-Split Installation & Replacement
Ductless mini-split systems are ideal for room additions, finished basements, bonus rooms over garages, and spaces where traditional ducts aren't practical. As an LG dealer, we install and commission single- and multi-zone systems for quiet, efficient comfort.
Mini-Split InstallationBoiler Installation & Repair
For Johnston homes with hydronic (hot water) heating, we install and service boilers and radiant heating systems. We ensure safe water temperature, proper pressure, and efficient heating.
Boiler ServicesIndoor Air Quality Services
Johnston's tightly built newer homes hold in humidity and stale air. We install whole-home air cleaners, UV light systems, high-efficiency filters, and humidifiers and dehumidifiers to keep the air your family breathes cleaner and balanced.
Indoor Air QualityPreventive Maintenance & Seasonal Tune-Ups
Seasonal furnace and AC maintenance keeps your system running at peak efficiency, prevents breakdowns, and extends equipment life. We offer spring and fall tune-up visits scheduled before each season starts.
Maintenance PlansGet Fast HVAC Service in Johnston
Need heating or cooling service? Our team responds quickly with same-day service when possible.
Frequently Asked Questions About Johnston HVAC Service
We Also Serve Your Neighbors
In addition to Johnston, we provide HVAC services throughout central Iowa. If you live in a nearby community, we can help:
Serving Communities Throughout Central Iowa:
Not Sure If We Service Your Area?
We're dedicated to serving Greater Des Moines and our surrounding communities. Give us a call if you're not sure if we come to you - chances are we do.
Trust Obsidian for Johnston Heating and Cooling
When you need HVAC service in Johnston, our veteran-owned team is ready to help. We've spent 15+ years keeping central Iowa homes comfortable, and serving a military community like Johnston - home to Camp Dodge and the Iowa National Guard - is something we take personally. Whether you need a fast repair, a seasonal tune-up, or a new system, we show up on time and do the job right the first time.
Our Johnston services include repairs handled same-day when possible, preventive maintenance that heads off future breakdowns, and new installations with professional ductwork and controls. We work on furnaces, heat pumps, air conditioning, boilers, and ductless mini-splits, and we right-size and tune systems for Johnston's tightly built newer homes near Terra Lake, Green Meadows, and Beaver Creek, as well as its established neighborhoods. When you're replacing a system, we offer financing through approved partners to spread the cost over time.
Johnston is a growing northwest suburb of Des Moines in Polk County, ZIP code 50131, known for Camp Dodge, the Pioneer / Corteva Agriscience campus, and its proximity to Saylorville Lake. Learn more about Johnston, IA on Wikipedia.
